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Microbial feedstock for filter feeding aquatic organisms

Inactive Publication Date: 2006-08-24
SATO GORDON H
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012] Other food sources can be used to support the growth of these special microorganisms that include such inexpensive products, such as peanut cake after the oil is pressed out, molasses, which is a by-product of sugar production, sugar beet syrup and cane syrup or the like. Their disadvantage is that they can support many kinds of microorganisms, some of which could be pathogenic. This disadvantage, however, can be remedied by sterilizing seawater with chlorine or filtering the seawater. Care has to be taken, however, to prevent foreign microbes' entry into the cultures. It is contemplated within the scope of the invention that the seawater within the culture medium can be refreshed frequently to prevent unwanted organisms from taking over the culture.
[0013] It is also contemplated within the scope of the invention that the inventive method can be used as an efficient method to fix atmospheric carbon dioxide. The fixing of atmospheric carbon dioxide into plant material requires a significant amount of energy. The use of the inventive method to grow shellfish on a large scale wherein the shellfish produce calcium carbonate from atmospheric carbon dioxide results in a more energy efficient method of alleviating the excess of carbon dioxide within the atmosphere.

Problems solved by technology

Their disadvantage is that they can support many kinds of microorganisms, some of which could be pathogenic.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] To test the nutritional value of bacteria, and the procedure of culturing, the following experiment was done. Two 200-liter glass aquaria were set up out doors. The aquaria were partially shaded. The aquaria were filled with seawater from the Red Sea. On the first day, each aquarium received 10 mg of Artemia cysts from the Great Salt Lake, and iron EDTA, urea, and sodium dibasic phosphate. The final concentrations within the aquaria were as follows: ferric chloride 0.002 gms per liter, sodium EDTA 0.0035 gms per liter, sodium dibasic phosphate 0.0025 gms per liter, and urea 0.05 gms per liter. On day three, ten grams of sucrose were added to aquarium 1, and none to aquarium 2. On day 23, the Artemia were harvested with a fine aquarium net, daubed dry, and weighted. From tank 1 (with sugar) 27.0 grams of Artemia were harvested, and from tank 2 (without sugar) 3.0 grams of Artemia were harvested. The temperature during the time of the experiment ranged from approximately 25 to ...

example 2

[0024] The next illustrative example was done indoors to control the temperature. With air conditioning the room temperature was maintained at approximately a constant 27 degrees centigrade. On day 1, each of three plastic buckets were set up with fifty liters each of sea water from the Red Sea. Each bucket received 60 mgms of Artemia cysts from the Great Salt Lake, and nitrogen, phosphorus, and iron as in the previous experiment. The buckets were aerated as in the previous experiment. On the second day, buckets 2, and 3 received 2.5 Gms of sucrose, and 50 ml of an overnight culture of bacteria. The bacterial culture was prepared by taking 500 ml of fresh sea water, and adding iron, nitrogen, and phosphorus as before and 0.2 gms of sugar per liter, and aerating overnight. Overnight the cultures became quite cloudy. On the 5th day, bucket 3 received 2.5 Gms of sugar, and nitrogen, phosphorus and iron equivalent to what had been added initially. Bucket 3 also received 50 ml of bacteri...

example 3

[0028] A further illustrative example was undertaken with four plastic buckets with 50 liters each. Along with the sea water as noted above, nitrogen, phosphorus, iron and about 60 mgs of Artemia cysts were set up as in the previous illustrative examples. On the second day, buckets 2, 3 and 4 were given 2.5 Gms of sugar (10 ml of 0.25 Gms per cc in water). Also added to the buckets was 50 ml of overnight bacterial culture. On the 3rd day, bucket 2 was illuminated with a 100 watt light bulb suspended about six inches above water surface. The light was kept on for the duration of the experiment. On the 5th day, 2.5 gms of sucrose was added to buckets 2, 3 and 4. On the 5th day, fifty ml of bacteria culture was added to all buckets. On the 9th day, 2.5 Gms of sucrose were added to buckets 2, 3 and 4 and fifty ml of bacteria culture was also added to all buckets. On the 12th day, 2.5 gms of sugar was added to buckets 2, 3 and 4 and all buckets received 50 ml of bacterial culture and nit...

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Abstract

The present invention provides a method of cultivating filter feeders such as Artemia by substituting special microorganisms for naturally occurring microscopic algae, and providing conditions optimal for the growth of these organisms. These subsituted special microorganisms provide an abundant food source for Artemia and subsequently the Artemia provide a food source for higher order members of the marine food chain.

Description

CROSS REFERENCES TO RELATED APPLICATIONS [0001] This application claims priority of the U.S. Provisional Patent Application Ser. No. 60 / 429,095 filed Nov. 26, 2002 which is incorporated by reference in its entirety.FIELD OF INVENTION [0002] This invention relates to a method of increasing the production of filter feeding organisms such as Artemia in aquaculture, these filter feeding organisms can be used as feed in the cultivation of farmed fish, crustaceans and shellfish. BACKGROUND OF INVENTION [0003] In recent years it has become increasing popular to cultivate marine species in controlled settings. This cultivation, which is commonly referred to as aquaculture, has allowed the production of a variety of marine species for human consumption. Increasingly, many edible fishes have been produced using aquaculture. While aquaculture has shown marked technological increases, to support the growth of this industry, it is necessary to produce an artificial feed or to increase the harves...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01K61/02A01K67/033A23K1/00A23K1/18
CPCA01K61/00A01K61/002A01K61/005A01K61/02A01K67/033A23K1/008A23K1/188A23K10/16A23K50/80A01K61/54A01K61/59A01K61/80A01K61/50Y02A40/81
Inventor SATO, GORDONH
Owner SATO GORDON H
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